Telephone system



July 29, 1941. H. TCPFER TELEPHONE SYSTEM Filed Feb. 3, 1958 2 Sheets-Sheet 1 INVENTIOR. HERBERT TdPFER ATTORNEY.

July 29, 1941. H. TOPFER TELEPHONE SYSTEM Filed Feb. 5, 1938 2 Sheets-Sheet 2 INVENTOR. HERBERT TBPFER ATTORNEY;

Patented July 29, 1941 UNITED STATES PATENTVOFFICEI TELEPHONE SYSTEM Herbert Ttipfer, Berlin-Siemensstadt, Germany,

assignor to Siemens & Halske Aktiengesellschaft, Wernerwerk, Siemensstadt, near Berlin,

Germany Application February 3, 1938, Serial No. 188,402- In Germany February 24, 1937 18 Claims. (Cl. 1797.1)

The present invention relates to a circuit arrangement for metering variously rated calls in remote communication systems and more especially telephone systems in which the metering impulses are registered and are subsequently transmitted to the meter of the calling station by the restoration to normal of the registering member.

ticular impulse'sending device of a plurality of. such devices at definite intervals of time so thatthis device is advanced by an amount corresponding to the fee to be charged for this in I terval of time.

By the arrangement according to the invention it is possible to construct the fee register."

as a simple device having only one mechanical contact. Furthermore, the arrangement accordingto the invention enables the drive for the register to be common to a plurality of metering impulse transmitters and in fact for'the' (1) Zone switch M1.

The zone switch DMI is set by the impulses transmitted by the calling subscriber after the manner of a discriminator switch. For the sake of simplicity it will be assumed that the value of the call is determined by one digit and that this 'digit is taken up by the zone switch which is shown as a simple rotary switch. By means of the wiper clm=l which is set on a particular contact by the characterizing digit transmitted devices are connected up which control a further'device for calculating the fee in with the value of the call.

. (2) The tarifi cams On 'a common shaft are arranged. a plurality accordance of tariff cams TS] and TSZ which are shown in Fig. 1. Each of these cams represents a particular zone. These cams possess a definite shape in accordance with the zone in that they are provided with projections or similar contact members having a definite orientation. The cams serve to influence a member determining the number of metering impulses to be transmitted, by a determined amount at definite times.

(3) The fee register GS The fee register GS serves to determine the number of metering impulses to be transmitted. It is controlled by the 'tarifi' cam corresponding to the zone in question for each call and is ad-. vanced by a definite amount at definite intervals of time during thecourse of the call. At the end of the call the fee register is restored by steps into. the rest position and transmits one meter-v ing impulse for each step.

(4) The impulse sender NS At the bottom of the drawing a' group of cam discs are shownmounted onthe same shaft and. rotating once for example every 10 seconds. The tariff cam selected determines which of the impulse senders NSI to N86 is to transmit impulses for advancing the fee register during the individual time units. Every 10 seconds the impulse sender NSO' completes a circuit for'the magnet of the tariii' disc so this is'advanced in steps at intervals of 10 seconds.

The mode of operation of the arrangement shown in Fig. 1' will now be described in detail. When the metering repeater is seized relay C energizesover lead 0; It closes its contact I20 and thus completes the following circuit for the winding of the slow-acting relay R: earth, contacts I20, I62) and 13g, wiper dml, in the rest position, the winding of relay R, battery and earth. Relay R closes its contact 91' and thereby prepares the impulse circuit for magnet DMI of the zone switch. When now the subscriber transmits the digit which determines the value of the call relay A becomes energized impul sively over the speaking lead a and contact 2g.

Through the opening of contact lathe shortcircuit which previously existed across the winding of relay V is broken andthis relay is switched on by the closing of contact 8a: earth, contact 8a,.the winding of relay V, resistance Wi2, battery and earth. Since it can only be deenergized by short-circuiting. at contact 1a relay V makes a delayed release. The brief interruptions at contact 8a during the impulsing do not therefore suffice to cause the relay to release. Re-

lay V therefore maintains its contacts operated throughout the whole duration of the impulsing. At contact 417 the upper speaking lead is broken so as to prevent distortion during the transmission of the impulses which are extended over the upper speaking lead to the succeeding connecting devices over contact 50. Through the impulsive closing of contact Hla the zone switch dml is set in accordance with the impulses transmitted: earth, contacts Sr and Illa, magnet DMI, battery and earth. During the impulsing relay R remains energized in the following locking circuit: earth, contacts I20, I512 and H1, the Winding of relay R, battery and earth. The wiper dml of the zone switch is brought to a particular position corresponding to the impulse transmitted. It will be assumed in the present case that it is set on the first contact in its contact bank. On the transmission of the impulse train characterizing the value of the call, contact la remains closed for a longer period so that relay V has the opportunity of releasing. Through the opening of contact I512 the locking circuit of relay R is broken. Since now contact [11' is open relay R is prevented from being operated during the transmission of the following impulse trains. The latter are transmitted to the succeeding connecting device by contact a in the same way.

When the connection to the wanted subscriber is established and the latter replies, relay G is energized in the metering repeater by the application of battery potential to the lower speaking lead. Through the opening of contact 2g the impulse relay A is disconnected from the upper speaking lead and by the closing of contact 3g the winding of relay F and earth potential is connected to the upper speaking lead. Relay F is energized on the termination of the call when battery potential is connected in the known way to the upper speaking lead, through the replacement of the calling subscribers receiver. Through the closing of contact 20g the magnet MTS is brought under influence of the seconds switch by way of contact 36f. The magnet MTS serves to advance a series of tariif cams mounted on a shaft of which cams only two TS! and TSZ are shown. Since it was assumed that the zone switch was standing on the first contact cam TSI is accordingly connected and now decides the number of metering impulses to be transmitted. The 10 seconds contact which'is controlled by the cam disc N80 is mounted together with a plurality of differently shaped cam discs ofwhich only the discs NS! and NS5 are shown on a shaft driven continuously at such a velocity that it executes a complete rotation in 10 seconds. Only one of these impulse sending devices need be provided per exchange.

The tariff cams are constructed in a particular manner according to the zone which they represent. They possess projections arranged in various successions and at various distances from their centers, which operate on particular contact springs. The tariff cam TSI, for example, possesses two difierent groups of projections, namely NKI and NKZ. The projections NK2 all lie on the same radius which is smaller than that on which are disposed the projections NKI.

When the cam NSO closes the 10 seconds contact for the first time the following circuit is established for the magnet MTS: earth, 10 seconds contact, contacts 30 20g, magnet M'IS,

battery and earth. The tariff disc is therefore advanced one step. No other switching operations take place at the moment because the cam NKI only engages with its associated contact spring lfllca, after a definite period, the period of grace. For example this takes place after the second closing of the 10 seconds contact, i. e., after a minimum time of 10 seconds or a maximum time of 20 seconds. The contact llllca is closed for 10 seconds by the cam NKI on the tariff disc TSl. In consequence the cam disc N83 is connected up and now transmits 3 impulses to the magnet TV through the triple closing and opening of contact 33: earth, contact 33, contact lllka closed by cam NKI, contact in the contact bank of the zone switch, wiper dml, contact Mg, magnet TV, battery and earth. The magnet TV serves to advance the fee register GS in the present case during the operation of contact [Ska by an amount determined by the cam disc NSB, namely by 3 steps. On the next closing of the 10 seconds contact, the magnet MTS receives a further stepping impulse so that the tariff disc is advanced a further step. The cam NKI is now no longer in engagement with the contact spring lSka so that for the moment no further influencing of the stepping magnet TV and thus no further advance of the fee register GS takes place. The tariff disc is so constructed that it is advanced by an angular displacement indicated by the drawing after the expiry of each minute. Only after the call has lasted for 3 minutes do the further switching operations take place. After the expiry of the 3 minutes a cam, in the first place cam NKZ, becomes operative. It closes contact switches on the cam disc NSI. The associated contact II is closed once during the operation of contact [9701) so that the stepping magnet TV now receives an impulse over the following path: earth, contact ll, contact spring l9kb operated by the first cam NK2, contact Iv in the bank of the zone switch, wiper dml, contact 14g stepping magnet TV, battery and earth. The fee register GS is thus advanced a further step. No further advancement of the fee register takes place until the expiry of the fourth minute. Then the contact spring IBM; is influenced, this time by the second cam NKZ whereby the cam disc NSI is connected up again and by influencing the stepping magnet TV once advances the fee register GS a further step. As may be seen directly from the drawing after the expiry of every further minute the contact l9kb is closed by a cam NK2 so that after the expiry of every minute the fee register is advanced by one step.

When the calling subscriber terminates the call by replacing his receiver battery potential is applied to the upper speaking lead in the preceding connecting device in the known way and relay F is energized over contact 3g. Through the opening of contact 30], the 10 seconds contact is disconnected. Through the closing of contact 21 the following circuit is set up for the relay Z which transmits the metering impulsesl' earth, contact 299s (mechanical contact of the fee indicator which is closed as long as the latter is ofi-normal) contact 28h" (a contact of the magnet TR which restores the fee register from the position which it has assumed back to normal), contact 21], the winding of relay Z, battery and earth. Through the closing of contact is battery potential is applied to the lower speaking lead over resistance Wil, whereby a metering lfikb and thus impulse receiving relay is. energized in a preceding connecting device and extends; the metering impulses to the calling subscribers meter. 1 Relay Z also closes its contact 262:- andthus; com.

pletes the. following circuit for the magnet TR: earth, contact 252, magnet TR, battery and earth. The magnet TR switches the fee register one step back and opens its. contact 28751- andthus breaks the above-described circuit torrelay Z. Relay Z opens its contacts la. and 26a.

The first of these serves to disconnect battery.

from they lower spealnng lead and thus terminates thefirst metering impulse. The latter contact breaks the. circuit for the backward stepping magnet TR. Accordingly contact 28tr is closed again and thus the circuit for the metering transmitting relay Z is once more established. Relay Z transmits the next metering impulse over the lower speaking lead and at the. same. time influences the backward stepping magnet TR so that the, fee register is stepped back a further step. This interaction between the metering transmitting relay and the backward stepping magnet TR continues until thefee register has reached its. rest position in which the mechanical contact 29gs is opened. The circuit for the metering impulse transmitting relay Z cannot now be completed again. Thusv a number of metering impulses are transmitted by the fee register corresponding to the length of the fee register bank traversed during the call or to the angular extent by which it was advanced.

If the called subscriber sets up a call of a different value then instead of tarifi disc TSI another tarifl" disc is connected up by the" zone switch and its wiper dml. If for example the digit operating on the metering transmitter comprises 3 impulses the wiper dml is set on the third contact. In consequence the tarifi disc TSZ- is connected up. As may be seen from the drawing the fee register is operated in a different manner from that in which it was operated by the fee disc TSI When after the called party has replied and the grace period has expired contact 23kcis closed by the cam NK3 the cam disc N84 is connected up and the associated contact 44 is closed four times during the operation of contact 237cc.

The advancing magnet TV of the fee register GS thereby receives four impulses over thefollowing path: earth, contact 44 operated by the cam disc NS4, contact 237cc, closed by the cam NK3, wiper dml on contact 3, contact My, winding of the advancing magnet TV, battery and earth. The fee register, therefore, in the case of this call is advanced four steps for the first 3 minutes. In'the space between the radii I" and 4' there are no further cams on the tariff disc TSZ. Only when after the expiry of 3 minutes conversation, theradius 4 comes intothe position occupied by the radius 1' after the expiry of the grace period is contact 247ml operated by the cam NK4 in this position and thereby connects up the cam disc NSI which now advances the fee register one step for the fourth minute of conversation. The impulse transmitted by the cam disc NSI takesthe following path: contact H operated by the cam disc NSI, contact 247ml; operated by the cam NKG on radius 4, wiper dml, on contact 3, contact Mg, advancing magnet TV, battery and earth.

After the expiry of the fourth minute of conver sation the radius 5" comes. into the operating position. The contact 251cc is now closed by the cam NK5 lying on theradius 5' and consequently the cam disc NSZ is switched on and sends 2 im,

pulses to the advancing magnetv 'IV oft'the. fee

operated by the camdisc NS2, contact 257ccv operated bythecam NK5 on: radius 5'., wiper d111,!" at contacts, contact l4g-, -advanci-ng magnet battery: and earth. The-fee register is thus ad?" fiuencing inyaccordance'. with the magnitude. of the. fee prescribed fOlIfthB unit length of conver-.

sation...

Accordingto the arrangement shown no. fee.

reckoning takes place during, the. grace period,

1. e., aboutlOto 20 seconds after the called party.

has replied. It can, however, very easily be. arranged with themeansset out for the fee register to beadvaficed to the desired extent for example,

by one unit immediately on. the relay of the. called. party by means of a corresponding cam. In this case:if :it. is established that the: called subscriber is not the one desired, by giving the clearing. signal during the grace. period thecalling subscrib-' ers meter will only be. charged to an extent of one. unit- The reckoning of the fees according to the different tariffs (day and night tariff) is also not represented. This "may also be arranged form that different tari'fi' discs areprovidedj for the day and night tarifit and the. connection of the one or other tarifi discs. is. then effected by a contact or the like controlled by a clock in the known way. The arrangement shown in Fig; 2 corresponds in. principle with the arrangement shown in Fig.

I. The onlyimportanttdifierencesarer 1. That a separate tarifi disc is not provided for each value of call, but asingle discis provided for all the zones.

2. That the 10: s'econd'impulses do not directly bring about the advancing of the" tariff discs but are regis'teredby a. switch and the tariff disc is advanced by the latter in larger intervals of time; According to. Figure 2 the zone switch serves,

to register the 1.0'seconds units.

The detailed mode of operation. of this arrange mentisas .iollows: l

on seizingthe metering transmitter relay Cl energizes and closes its contact Hlcl and thus completes thefollowing' circuit for the winding of relay RI earth, contacts i, 690i, 66g], wiper dmlflin the restlp'osition, the windin of relay RI, battery vandnearth. Relay R1 closes its contacts 61M and. SSH and thereby prepares the locking circuit for itself and prepares the impulse circuit forthe magnet DM of the zone switch. Contact 8.171 is opened and thus prevents a premature operationof the magnet of the tarifi "disc TF. 'Wh'en impulse trains are transmitted by the calling subscriber relay Al in the metering. transmitter" is energized. impulsively over the upper;

speakingleadand contact 5091.. The magnet DM of the zone switch. receives numerical impulse trains corresponding to the value of the call over the following path: e.arth,contacts 6311, Mai, magnet DM of the zone switch, battery and earth. The wipers dmt, dm'Z, (11113 of the zone switch are thus set on a particular contact. Through the register over the following path; earth, contact. 22

opening of contact 55aI on thefirst energizing of relay AI and the closing of contact 56aI, the following circuit is set up for relay VI: earth, contact 5'6al the winding of relay VI, resistance Wi l, battery and earth. Relay V I does not release during the transitory interruptions at contact 56(1I1and thus remains energized throughout the whole impulse train. 7 Thus the upper speaking lead is cut off by the opening of contact 5111i during the transmission of the impulse trains sent out by the calling subscriber. The transmission of the impulse trains to the succeeding connecting devices is effected by contact 58aI over the upper speaking lead. During the impulse train the following locking circuit is established for relay RI: earth, contacts IcI, 6 81M, and B'Irl, the winding of relay RI, battery and earth. On the transmission of the impulse train serving to determinethe value of the call, contact 55aI re mains closed for a prolonged period so that relay VI has the chance to release. Consequently contact 68vl is opened and the locking circuit for relay RI is broken. On the transmission of the succeeding impulse trains relay RI cannot energize again so that the magnet DM of the zone switch receives no further impulses on account of contact 63H being open.

The function of the switch DM solely as a zone switch is terminated after the first impulse train operating on the repeater. The zone characteristic is now taken over by another device so that the zone switch becomes free and can be used for other purposes, namely in this case as a time register.

After relay RI has released contact 8Ir is closed so that the following circuit is completed over magnet TFM of the tariff disc TF: earth, relay interrupter RUI, contact 83dmw (rotary off-normal contact of the rotary magnet DM closed so long as the latter is: off-normal) contacts 85.250 and SITI, magnet TFM, battery and earth. Under the influence of the relay interrupter RUI the tariff disc TB is now advanced until one of the cams mounted on the arcs kr'l to M9 closes that contact of the contacts ZOI to Z which is connected to the contact on which wiper dml has been set by the characterizing digit transmitted.

If the wipers of the zone switch DM were brought to position I the tariff disc TB is com pleted by the relay interrupter RUI until the cam on the inner side of the circle krI has closed the associated contact ZOI. The following circuit is then set up: earth, contacts IIlcI, 69M and 66gI, wiper dml in position I, contact ZOI closed by thecam on the circle ml, the winding of the zone testing relay ZP, battery and earth. Relay ZP locks up throughout the call in the following circuit: earth, contacts Mel and 132p, the winding of relay ZP, battery and earth. The opening of contact 842p breaks the stepping circuit for the tariff disc TF and thus brings the latter to rest. Relay ZP also closes its contact 652p and causes the zone switch DM to be stepped to normal in the following path: earth, relay interrupter RU, contacts 652p and 64gI, wiper dm3, of the zone switch in the working position, magnet DM, battery and earth. When the zone switch has reached'its rest position under the influence of the relay interrupter the stepping circuit is broken at wiper (1111.3.

The reckoning of the fee now takes place in a manner similar to that already described in accordance with the tariff corresponding to the sector ZoI. v

' When after the call has been set up the called party replies relay GI is energized in the metering repeater through the application of battery to the lower speaking lead.

Through the opening of contact 5IlgI the impulse relay AI is disconnected, while through the closing of contact 5IgI relay FI and earth potential are connected to the upper speaking lead. Through the closing of contact 6Ilgl the magnet DM of the zone switch is now brought under the influence of the ten-seconds contact.

The zone switch takes up the individual-tenseconds impulses and registers them and transmits the stepping impulse to the tariff disc TF at definite intervals of time, for example, every minute.

If after the expiry of the period of grace (about 10 to 20 seconds) the wiper dm2 of the switch DM reaches the second contact in its bank, the following circuit obtains for the magnet TFM of the tariff disc TF: earth, contacts BIcI, BGgI, wiper dmZ in position 20", contacts 852p, 8 IrI magnet TFM, battery and earth. The tariff disc is now advanced by one step so that now contact Him is closed by the cam on the circle M3. Contact 'I'Ilcw stands in contact with the cam disc N83, which like the other cam discs of the common impulse sending device is not shown in Fig. 2, but corresponds to that of Fig. 1. During the time in which contact T'Ikw is closed three impulses are thus transmitted over the following path to the advancing magnet TVI of "the fee register GSI: cam disc NS3, contacts 'I'Ikw, 'Mtf (contact of magnet TFM) stepping magnet TVI, battery and earth. The fee register GSI is thus advanced by three steps.

After the expiry of the first minute of conversation, wiper dmZ passes into position 2', so that once more the stepping circuit for magnet TFM of the tariff disc TF is closed: earth, contacts 8'IcI, 86gI, wiper dmZ in position 2, contacts 852p, 8IrI, magnet TFM, battery and earth. The tariff disc is thus advanced by a further step. No further advancing of the fee register takes place for a moment since in the present position of the tariff disc no contact is closed by a cam. After the expiry of the second minute of conversation the wiper dm2 passes into position 3, so that the tariff disc is advanced a further step. In this position of the tariff disc also no contact is closed by a cam so that the fee register is not advanced. When after the expiry of the third minute of conversation when wiper dmZ has passed into position 4', the tariff disc is advanced a further step, the contact I5lcu is closed by a cam arranged on the circuit krI. Contact I5lcu is in contact with the cam disc NSI shown in Fig. 1. The stepping magnet TVI for the fee register GSI thus receives an impulse so that it is advanced by a further step.

As may be seen directly from the drawing, the fee register GSI is now advanced one unit after the expiry of each succeeding minute of conversation in accordance with the tariff embodied by the sector ZoI.

When the calling subscriber gives the clearing signal by hanging up his receiver at the end of the call, battery potential is applied to the upper speaking lead in the well known way in a preceding device and this energizes relay FI over contact 5IgI. Through the opening of contact 12 the ten-seconds contact is disconnected from the magnet DM. Through the closing of contact 88,fI the following circuit is set up for the metering repeating relay ZI: earth, contact SBgsI (closed so long as the fee register is off-normal), contacts 89trl 88f], the winding of relay Zl, battery and earth. Through the closing of contact 532i battery potential is applied to the lower speaking-lead over resistance Wz'3 and thus the first metering impulse is transmitted. Through the closing of contact 592! the backward stepping magnet TRI of the fee register is switched on, so that the fee register is switched back one step. Through the opening of contact 8915M of the backward stepping magnet the metering repeating relay Z! is disconnected and terminates the first metering impulse by opening contact 5321. At contact 592] the circuit for the backward stepping magnet is broken, so that contact.

89trl closes again. Relay Zl is now energized again in the above-mentioned circuit and causes the second metering impulse to be transmitted. In this way as many metering impulses are trans- 'mitted to the calling subscribers meter as the?- number of steps which the fee register GSI has to be displaced to bring it from the position in which it has been set into the rest position. With the fee register in the rest position contact 90gsl is opened and thus terminates the metering op-y" eration.

If the first impulse train operating on the metering repeater consisted of three impulses the wipers of the zone switch DM are set on the tl ird Over wiper dml contact Z02 is then connected up. After the end of this impulse contact.

train and when relay RI has released the tariff disc is advanced under the influence of the relay interrupter RU! until contact Z02 is closed by the cam lying on the periphery of the circuit" M8. The following circuit is then set up for the zone testing relay ZP: earth, contacts Incl, 6912i, 66gl, wiper dml, in position 3, contact Z02, the winding of relay ZP, battery and earth.

Relay ZP promotes the same switching operations as those already described.

The computing of the fee now takes place in accordance with a tariff embodied by the sector Z011. When the tariff disc is advanced one step after the expiry of the grace period contact;

18km is closed by the cam on thecircle M4. The feeregister is advanced four steps by the cam fourth minute, contact 161w is closed by a cam on the circle k'r2 whereby the cam disc NS! is connected up causing the fee register to be advanced two steps. After the expiry of the fifth and sixth minutes the fee register is advanced a further step as may be seen directly from the drawing and after the seventh minute by two steps and so on. At the end of the call theoperations for restoring the fee register GSI and the transmission of a number of metering im-' pulses corresponding to the angluar extent by which the fee register was advanced during the course of the call then set in again in-the man-r ner described.

The other sectors of the fee switch are constructed in a difierent manner corresponding to the associated fee. If for example a call is set up in the zone 3 the tariff disc is advanced after" the transmission of the characterising number until the cam on the inside of the circle kr8 has a closed contact. Z03. rThe advancing of the fee registerGSl during the course of the call in accordance'with the .fee to-be charged is then controlled by cams which are arranged in aparticular manner (not shown) on the sector ZoIII. What is claimed is: V

. 1. .A call charging arrangement for. use in a communication system in which calls may be extended over connections having different values, including a member having a normal position, a plurality of impulse senders, means forrendering difierent ones of said impulse senders effective at different times during a call over a connection, impulse responsive means operated by said difierent impulse senders to advance said member step by step from its normal position an amount dependent both upon the value of said connection and upon the duration of the callthereover, means for restoring said member to its normal position after the call has been terminated, and call charging means controlled by said member during its restoration to said normal position.

2. A call charging arrangement for use in a communication system in which calls may be ex-' tended over connections having different values, comprising variably operable means set in dependence upon the value of a connection, a register having a normal position, a plurality of driving members, time controlled means for rendering certain of said members, depending upon the setting of said first means, effective at intervals during aicall over said connection, said members advancing said register from its normal position by an amount depending both upon the value of the connection and the durationof the call thereovenmeans for restoring saidregister to itsnormal position after the call has been terminated, and call charging means controlledby said register during its restoration to said normal position.

3. A call charging arrangement for :use in a communication system in which calls maybe extended over connections having different values, comprising variably operable means set in dependence upon the value of a connection, a register having a normal position, a plurality of impulse senders, time controlled means for rendering different :ones on said impulse senders, de-

pending upon the setting of said first means, effective at different times during a call over said connection, impulse responsive means operated by said different impulse senders to move said register step-by-s-tep in one direction from its normal position by an amount depending both upon the value of the connection and the duration of the call '=thereover,.means effective after the call h-as been terminated for moving the register st'epby-step in the opposite direction and for transmitting call charging impulses at the same time, and means operated by the register upon its arrival at said normal position for rendering said last means lnefiective.

4. ,A call chargingarrangement for use in a communication system, including a register having a normal position, a plurality of driving elements for said register, time controlled means operating during a call to render different ones :of said driving elements effective at intervals in -.accordance with a predetermined program, the distance said register has been driven from its ,normal position at the termination of the call thereby depending in part upon the duration of the call, means for restoring said registerto' its normal position after the call has been terminated, and call charging means controlled by said register during its restonation to said normal position.

5. A call charging arrangement for-use in a communication system, including a register having a normal position, a plurality of driving elements for said register, time controlled means operating during a call to render different ones of said driving elements effective at intervals in a predetermined sequence, the distance said register has beendriven from its normal position at the termination of the call thereby depending in part upon the duration of the call, said register restored to its normal position after the termination of a call, an impulse generator for transmitting call charging impulses While the register is being restored to said normal position, and means operated by said register upon its arrival at said normal position for rendering said last mean-s ineffective.

6. A call charging arrangement for use in a communication system in which calls may be extended over connections of different values, including a register, a plurality of register controlling elements adapted to control said register in different manners, and a plurality of movable members, the different members corresponding respectively to connections of different values, each member, rendered effective only when a i call is extended over a connection of the value to which that member corresponds and moved continually during said call to cause different predetermined ones of said elements to control said register at predetermined times throughout the call.

7. A call charging arrangement as claimed in claim 6, wherein the different members first render different elements effective thereby initially to control the register differently in accordance with the value of the connection over Which the call is extended.

8. A call charging arrangement as claimed in claim 6, wherein the different members first render different elements effective thereby initially to control the register differently in accordance with the value of the connection over which the call is extended, and wherein each member thereafter renders effective at intervals an element different from the first element rendered effec tive by that member thereby to control the register in accordance with the duration of the call.

9. A call charging arrangement as claimed in claim 6, wherein the different members first render different elements effective thereby initially to control the register differently in accordance with the value of the connection over which the call is extended, and wherein each member thereafter renders eifective at intervals in a predetermined sequence a plurality of 7 elements different from the first element rendered effective by that member thereby to control the register in accordance with the duration of the call.

10. A call charging arrangement for use in a communication system in which calls may be extended over connections of different values, including a plurality of movable members each corresponding to a connection of a particular value and rendered effective when a call is extended over a connection of that value, an impulse operable register, and a plurality of impulse generators each capable of being rendered effective by one or more of said members thereby to control said register, that member which is rendered effective moving continually in one direction during the call and rendering different ones of the generators effective to control the register at predetermined intervals of time and in a predetermined sequence.

-l l. A call charging arrangement for use in a communication system in which calls may be extended over connections of different values, including a register, a plurality of register controlling elements adapted to control said register in different manners, and a time controlled member operating continually during a call and, in accordance with a prearranged plan, at times rendering different ones of said elements effective to control said register, said member having a plurality of said prearranged plans a particular one of which is rendered effective in accordance with the value of the connection over which said call is extended.

12. A call charging arrangement for use in a communication system in which calls may be extended over connections of different values, including a register, a plurality or registers controlling elements adapted to control said register in different manners, a time controlled member moving continually during a call, a plurality of series of projections carried by said member, each series comprising one or more projections moved in a particular path by said member, means situated in the path of each series and controlled by the projections of that series to at times render a particular one of the register controlling elements eifective to control the register, and means controlled in accordance with the value of the connection over which said call is extended for rendering only certain pre determined ones of said series effective.

13. A call charging arrangement as claimed in claim 12, wherein one or more of said register controlling elements is rendered effective under control of more than one series of projections.

14. A call charging arrangement for use in a communication system in which calls may be extended over connections of different values, including a register having a normal position, a plurality of driving elements for moving said register in a particular direction but adapted to control the register in different manners, a plurality of movable members, the different members corresponding to connections of different values, each member rendered effective when a call is extended over a connection of the value to which that member corresponds and moved continually during said call to cause predetermined ones of said driving elements to control said register at predetermined times throughout thecall, means effective after the call has been terminated for moving said register in the opposite direction and for transmitting call charging impulses at the same time, and means operated by said register upon its arrival at said normal position for rendering said last means ineffective.

15. A call charging arrangement for use in a communication system, in which calls may be extended over connections of different values, including a register having a normal position, a plurality of driving elements for moving said register away from its normal position, different ones of the elements adapted to control the register in different manners, a time controlled member operating continually during a call and, in accordance with a predetermined program. rendering different ones of said driving elements effective to control said register, said member having a plurality of said predetermined programs a particular one of which is rendered effective in accordance with the value of the 1 connection over which said call is extended,

means 'for' restoring said register to its normal position after the call has been terminated, and call charging means controlled by said register during its restoration to said normal position.

16. A call charging arrangement for use in a communication system in which calls may be extended over connections of different values, including time controlled means, movable means initially set in dependence upon the value of a connection and thereafter moved from the initial setting under control of said first means during a call over the connection, a register, and a plurality of register controlling elements adapted to control said register in different manners, difierent ones of said elements rendered efiective by said movable means at intervals throughout said call in a. sequence predetermined by the initial setting of said movable means.

17. A call charging arrangement for use in a communication system in which calls may be extended over connections of different values, including a register, a plurality of register controlling elements adapted to control said register in difierent manners, a movable allotting member determining which, if any, of the register controlling elements shall be effective, means operated in accordance with the value of a connection, said allotting member thereupon moved under control of said last means to an initial position determined by the value of said connection, said last means thereafter operated as a timing means to move said allotting member step-by-step from said initial position during acall over said connection, various ones of said register controlling elements being rendered effective in a predetermined sequence by said allotting member as it occupies various positions.

18. A call charging arrangement as claimed in claim 17, wherein the first register controlling element rendered effective by the allotting member is difierent for difierent initial positions of the member, whereby the register is initially controlled in difierent manners in accordance with the value of the connection over which the call is extended.

HERBERT T6PFER. 

